The Chipmunks are taking part in a school play: Theodore is a rock, Simon is a shepherd, and Alvin is an angel. Alvin is initially upset about his role as an angel, but after he receives a bump on the head, he's convinced he really IS an angel. Simon and Theodore are forced to follow him, cleaning up his so called "good deeds." The two brothers become tired of stressing over Alvin, so they decide that he needs a scaring to jolt him back to his original self. When their plan fails, they go home where two guys attempt to steal the Seville's television. Alvin confronts them, chasing them down the street. In the process, he falls off his skateboard turning back to his familiar self just in time for the play.
- "Heart Attack" originally performed by Olivia Newton-John.
- Look closely and you will see Robby the Robot when Alvin goes to the museum.
- The book The Chipmunks in Alvin the Angel is based off this episode.